Hydraulic brake apparatus for a vehicle
    1.
    发明申请
    Hydraulic brake apparatus for a vehicle 审中-公开
    车辆液压制动装置

    公开(公告)号:US20040074714A1

    公开(公告)日:2004-04-22

    申请号:US10660724

    申请日:2003-09-12

    CPC classification number: B60T13/145

    Abstract: The present invention is directed to a hydraulic brake apparatus capable of reducing a hysteresis caused by increase and decrease of braking input force, wherein a regulator chamber is defined ahead of a control piston, and a counter-force pressure chamber is defined to communicate with the regulator chamber. An auxiliary pressure source is provided for supplying hydraulic brake pressure to the counter-force pressure chamber, to move a pressure increase valve and a pressure decrease valve in a direction opposite to a direction thereof moved by the control piston. A first check valve is provided for normally preventing the flow of brake fluid from the counter-force pressure chamber to the regulator chamber, and allowing the reverse flow of brake fluid when the pressure in the regulator chamber has become equal to or more than the pressure in the counter-force pressure chamber by a first predetermined pressure. And, a second check valve is provided for normally preventing the flow of brake fluid from the regulator chamber to the counter-force pressure chamber, and allowing the reverse flow of brake fluid when the pressure in the counter-force pressure chamber has become equal to or more than the pressure in the regulator chamber by a second predetermined pressure, which is set to be greater than the first predetermined pressure.

    Abstract translation: 本发明涉及一种液压制动装置,其能够减少由于制动输入力的增减而引起的滞后,其中调节器室被限定在控制活塞的前方,并且反力压力室被限定为与 调节室。 提供辅助压力源,用于向反作用压力室供应液压制动压力,以使其与其控制活塞的方向相反的方向移动增压阀和减压阀。 提供第一止回阀,用于正常地防止制动流体从反力压力室流到调节器室,并且当调节器室中的压力变得等于或大于压力时允许制动流体的反向流动 在反力压力室中以第一预定压力。 并且,提供第二止回阀,用于正常地防止制动流体从调节器室流向反作用力压力室,并且当反力压力室中的压力已经变得等于 或大于调节器室中的压力,该第二预定压力被设定为大于第一预定压力。

Patent Agency Ranking